package NGUYENVANVU.OOP.DEMO;

public class Tringle {
//1.Datafield
	private double side01;
	private double side02;
	private double side03;
//2.Constructors
	
	public Tringle(){
		side01=1.0;
		side02=1.0;
		side03=1.0;
		
	}
	
	public Tringle(double side01,double side02,double side03){
		this.side01=side01;
		this.side02=side02;
		this.side03=side03;
	}

	public double getSide01() {
		return side01;
	}

	public void setSide01(double side01) {
		this.side01 = side01;
	}

	public double getSide02() {
		return side02;
	}

	public void setSide02(double side02) {
		this.side02 = side02;
	}

	public double getSide03() {
		return side03;
	}

	public void setSide03(double side03) {
		this.side03 = side03;
	}
	//4. Phuowng thwucs
	public double Area(){
		double a=(side01+side02+side03)/2;
		return Math.sqrt(a*(a-side01)*(a-side02)*(a-side03));
	}
	}

